air
air pollution
architecture
atmosphere
background
blue
boiler
building
business
chemistry
chimney
city
construction
danger
ecology
energy
environment
equipment
exhaust
factory
frost
furnace
gas
generator
heat
heating
high
industrial
industry
pipe
pollution
power
production
room
season
siberia
sky
smell
smoke
snow
steam
technology
urban
vapor
vapour
view
white
winter
work
定額
White thick smoke from the boiler room chimney. Smoke against the blue sky. Air pollution. Heating of the city. Industrial zone.の素材 [FY310180651119]
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